Dennis Gläser authored Feb 27, 2016 and Timo Koch committed Nov 23, 2016

the dirichlet fluxes must not be scaled with the area and the extrusion factor
since this happens in the flux variables

First copy the diagonal then copy the off-diagonals in
a loop over the neighbors. Fix typos.

Dennis Gläser authored Feb 26, 2016 and Timo Koch committed Nov 23, 2016

The evalSource_() method can be used for the calculation of the
sources on the whole element, e.g. for the derivatives w.r.t
an extended source stencil